LAS VEGAS, NV - MAY 25: Rob Kardashian poses for photos with fans during his new Arthur George by Rob Kardashian sock collection unveiling at Neiman Marcus on May 25, 2013 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)

NEW YORK, NY - APRIL 30: Rob Kardashian and Khloe Kardashian Odom of 'Keeping Up With The Kardashians' attend E! 2012 Upfront at NYC Gotham Hall on April 30, 2012 in New York City. (Photo by Dimitrios Kambouris/E/NBCU Photo Bank via Getty Images for E!)

LOS ANGELES, CA - MARCH 21: Rob Kardashian is seen on March 21, 2013 in Los Angeles, California. (Photo by JB Lacroix/WireImage)

LOS ANGELES, CA - APRIL 01: Rob Kardashian is seen on April 01, 2013 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)

LOS ANGELES, CA - APRIL 01: Rob Kardashian is seen on April 01, 2013 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)

LAS VEGAS, NV - MARCH 16: Television personality Rob Kardashian makes an appearance at the Kardashian Khaos store at the Mirage Hotel and Casino on March 16, 2013 in Las Vegas, Nevada. (Photo by Marcel Thomas/FilmMagic)

ATLANTIC CITY, NJ - SEPTEMBER 29: Brody Jenner (L) and Rob Kardashian take pictures with fans while hosting The Pool After Dark at Harrah's Resort on Saturday September 29, 2012 in Atlantic City, New Jersey. (Photo by Tom Briglia/FilmMagic)

MANILA, PHILIPPINES - OCTOBER 27: Rob Kardashian and American socialite and model Kylie Jenner showcase designs by Human on the runway on day five of Philippine Fashion Week Spring/Summer 2013 on October 27, 2012 in Manila, Philippines. (Photo by Jeoffrey Maitem/Getty Images)

MANILA, PHILIPPINES - OCTOBER 27: Rob Kardashian and American socialite and model Kylie Jenner showcase designs by Human on the runway on day five of Philippine Fashion Week Spring/Summer 2013 on October 27, 2012 in Manila, Philippines. (Photo by Jeoffrey Maitem/Getty Images)

PARIS, FRANCE - SEPTEMBER 19: Rob Kardashian is seen strolling on September 19, 2012 in Paris, France. (Photo by Marc Piasecki/FilmMagic)

NEW YORK, NY - APRIL 30: (L-R) Rob Kardashian, Khloe Kardashian Odom and Lamar Odom of Keeping Up With The Kardashians attend 2012 E! Upfront at Gotham Hall on April 30, 2012 in New York City. (Photo by James Devaney/WireImage)

In a preview for Sunday's brand-new Keeping Up With the Kardashians episode, Kris Jenner breaks down into tears while discussing her 28-year-old son's problems with a life coach.

"I feel like if I don't help him do something drastic, that he's gonna die," she first tells her daughters Kim and Kourtney, admitting that she didn't invite Khloe to the intervention-like situation because she is "a little protective" of Rob.

She then drops the bombshell that Rob's gained 100 pounds in the last year alone.

"He was always someone who was very athletic growing up, and he's gained over 100 pounds in the last year," she tells the life coach. "He doesn't want to participate. He doesn't go out of the house. He's missed Christmas, he's missed Kim's wedding."

"He obviously has some kind of depression," Kim adds. "He is the king of excuses ... I'm the only one that's really tough with him so he probably avoids me the most."

"This is my sister Kim, the b**ch from Gone Girl," he Instagrammed along with an eerie picture of Rosamund covered in blood. Though he has 2.7 million followers, Rob is not following Kim or any of his other family members on Instagram.

But Kim isn't backing down from her tough love approach.

"Everyone licks Rob's ass and does whatever he says," the 34-year-old reality star told Kris in another preview of Sunday's episode. It's just like, at some point you just have to give it up. We all make his life so easy."